1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ac7a82070ab70e50d8c0d3dd89ddc64677d707dd455e646787d9f9a70a1a2b. Chain 2 (Bitcoin): anchored in block 953717 (2026-06-15T01:05:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8959379b-c80b-4911-8248-492dcbf50920.json and https://artists.proofprofile.net/proofs/artist/8959379b-c80b-4911-8248-492dcbf50920.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24ef3002fb0939a56bbdb8089573f5d720eb73989cadf960a07d6dfa4afd8ef. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42416006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182d3ba0b36ba69cfe9d4cf35a83c4f963884181b2ccafa059e1ce467cb9c946. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42416007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3a1c04d59ed54042799c0f76d12cd5573dd64150d8abbafece63bd6def2e0a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42416008.
Fuck I thought of a good name recently but forgot
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bf3c8462ef9265a3fc466261c2c5ec9810aff471c0c191661d26a5d4340a9e. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42416009.
Smokey, This Is Not 'Nam, This Is Bowling, There Are Rules
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83de231d3df021e752832f67f3571484abe6ae5299c26ea071d7f5da4739351c. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42416010.
I Said I Wanted Space, Not A Whole Funeral
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a172077897567c9c82223b2beed53bcde5a1a4a7fb2370bd6d7044d1673a80. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42416011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7d1339b38adda362c0ef36cb79618655d46e81cde5623035e2cb11c6efe842. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42416012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4342ceadd3cf5cc67d55620a89caa4b63b0513a905938828a6e7a20de24d18. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22358543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacab4f932e260416909686485fd1d13029b6a247dc2666f6821572acea1587c5. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22358544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d98069a31e0bb6a0db370fcb22deea93ccc491eb73b117d5713ebe3af3769dc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22358545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eedea43aa0cbc176a8d93e4a1d4fd1a89dd9329a2693afe3b07fb26505a3373. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22358546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6aa383ea06049404ada1c70b7b0d77fdd37355b743d4f4a1ecb5b9201d55953. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22358547.